## ››Convert square metre to barn

 square metre barn

How many square metre in 1 barn? The answer is 1.0E-28.
We assume you are converting between square metre and barn.
You can view more details on each measurement unit:
square metre or barn
The SI derived unit for area is the square meter.
1 square meter is equal to 1.0E+28 barn.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between square meters and barns.
Type in your own numbers in the form to convert the units!

## ››Quick conversion chart of square metre to barn

1 square metre to barn = 1.0E+28 barn

2 square metre to barn = 2.0E+28 barn

3 square metre to barn = 3.0E+28 barn

4 square metre to barn = 4.0E+28 barn

5 square metre to barn = 5.0E+28 barn

6 square metre to barn = 6.0E+28 barn

7 square metre to barn = 7.0E+28 barn

8 square metre to barn = 8.0E+28 barn

9 square metre to barn = 9.0E+28 barn

10 square metre to barn = 1.0E+29 barn

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You can do the reverse unit conversion from barn to square metre, or enter any two units below:

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## ››Definition: Square meter

A square metre (US spelling: square meter) is by definition the area enclosed by a square with sides each 1 metre long. It is the SI unit of area. It is abbreviated m².

## ››Definition: Barn

A barn is a unit of area, abbreviated mostly as "bn", equal to 10-28 m2. Although not an official SI unit, it is widely used by nuclear physicists, since it is convenient for expressing the cross sectional area of nuclei and nuclear reactions. A barn is approximately equal to the area of a uranium nucleus.

## ››Metric conversions and more

ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!